へんぽうせいげんり 返報性の原理 LinksSentence search for 返報性の原理Sentence search for へんぽうせいのげんりKanji details for 返, 報, 性, 原 and 理Edit in JMdict Expressions (phrases, clauses, etc.), Noun1. norm of reciprocity Discussions Log in to talk about this word.